ISC, ISCe, QSC8.3, ISL, ISLe3, ISLe4 and QSL9 Engines – 009-051   Refrigerant Compressor

WARNING  Batteries can emit explosive gases. To reduce the possibility of personal injury, always ventilate the compartment before servicing the batteries. To reduce the possibility of arcing, remove the negative (-) battery cable first and attach the negative (-) battery cable last.

• Disconnect the battery.
  Refer to Procedure 013-009 (Battery Cables and Connections) in Section 13 of the ISBe, ISB, and QSB (Common Rail Fuel System) Service Manual, Bulletin 4021271,
  or Procedure 013-009 (Battery Cables and Connections) in Section 13 of the ISC, ISCe, QSC8.3, ISL, ISLe3, ISLe4 and QSL9 Engines Troubleshooting and Repair Manual, Bulletin 4021418.
• Remove the belt guard, if equipped.
  Refer to Procedure 008-001 (Belt Guard) in Section 8 of the ISBe, ISB, and QSB (Common Rail Fuel System) Service Manual, Bulletin 4021271,
  or Procedure 008-001 (Belt Guard) in Section 8 of the ISC, ISCe, QSC8.3, ISL, ISLe3, ISLe4 and QSL9 Engines Troubleshooting and Repair Manual, Bulletin 4021418.
• Remove the drive belt from the refrigerant compressor pulley.
  Refer to Procedure 009-052 (Drive Belt, Refrigerant Compressor) in Section 9.

Remove the refrigerant compressor mounting capscrew.

Remove the refrigerant compressor.

Refer to the OEM service manual for information on disconnecting refrigerant lines.

Refer to the OEM service manual for refrigerant compressor cleaning and inspection procedures.

Install the refrigerant compressor and the refrigerant compressor mounting capscrews.

Reference the compressor manufacturer’s guidelines for torque values.

NOTE: Due to the availability of different front end accessory drive configurations, this procedure is meant to be generic. Some front end accessory drive configurations may require the refrigerant compressors to be aligned with the other pulleys. Make sure all drive pulleys and idler pulleys are in alignment with one another. The components with shorter belt spans are the most critical and require special attention. Cummins Inc. recommends the use of the laser alignment tool, Part Number 3163524.

WARNING  Batteries can emit explosive gases. To reduce the possibility of personal injury, always ventilate the compartment before servicing the batteries. To reduce the possibility of arcing, remove the negative (-) battery cable first and attach the negative (-) battery cable last.

• Install the drive belt.
  Refer to Procedure 009-052 (Drive Belt, Refrigerant Compressor) in Section 9.
• Install the belt guard, if equipped.
  Refer to Procedure 008-001 (Belt Guard) in Section 8 of the ISBe, ISB, and QSB (Common Rail Fuel System) Service Manual, Bulletin 4021271,
  or Procedure 008-001 (Belt Guard) in Section 8 of the ISC, ISCe, QSC8.3, ISL, ISLe3, ISLe4 and QSL9 Engines Troubleshooting and Repair Manual, Bulletin 4021418.
• Connect the battery.
  Refer to Procedure 013-009 (Battery Cables and Connections) in Section 13 of the ISBe, ISB, and QSB (Common Rail Fuel System) Service Manual, Bulletin 4021271,
  or Procedure 013-009 (Battery Cables and Connections) in Section 13 of the ISC, ISCe, QSC8.3, ISL, ISLe3, ISLe4 and QSL9 Engines Troubleshooting and Repair Manual, Bulletin 4021418.